CSVT said:
Werd, im gonna take it in again and tell them to check:
Clutch
Flywheel
Swaybar endlinks
Trans Mounts
Motor Mounts
Reflash ECU
CHATTER
is a shaking or shuddering that is felt in the vehicle as the clutch is engaged
usually occurs when the pressure plate first contacts the clutch disc
~ it stops when the clutch is fully engaged
to check for chatter:
~ start the engine
~ depress the clutch completely
~ shift the transmission into first gear
~ increase engine speed to about 1,500 rpm
~ slowly release the clutch pedal
~ check for chatter as the pedal begins to engage
~ do not release the pedal completely
~ as soon as the clutch is partially engaged, depress the clutch pedal
immediately
~ reduce engine speed to prevent damage to the clutch parts
chatter is usually caused by liquid leaking onto the clutch and contaminating its friction surfaces
> this results in a mirrorlike shine on the pressure plate or a glazed clutch
facing
> oil and clutch hydraulic fluid leak can occur at:
~ the engine rear main bearing seal
~ the transmission input shaft seal
~ the slave cylinder
~ the hydraulic line
> when the damaged parts are replaced, the cause of the leak must be
found and corrected
other causes of chatter include:
~ broken engine mounts
~ loose bell housing bolts
~ damaged clutch linkage
~ worn input shaft splines
~ warped pressure plate or flywheel
~ broken or weak torsional springs in the clutch disc
~ failure to resurface the flywheel when a new clutch disc or pressure plate is installed
Perhaps this is the problem you are experiencing. It may have happened when you did some quick accelerations, if you thought you were in first, but really were in third.
R